Floor elevation

Set plant elevations floor elevations of buildings and bottom of steel footings for equipment and large storage tanks. 

The perpendicular distance from blast hole to the free face measured at the floor elevation of the quarry pit. 

Floor Elevations The vertical distance between operating levels must be no less than the height of the tallest process vessel plus 8 ft. or the tallest tank plus 6 ft. 

Seismic loads (E and Egg) are from the operating basis earthquake (QBE) and the safe shutdown earthquake (SSE), respectively. These seismic loads are inertial forces corresponding to maximum accelerations at floor elevations given for a range of site conditions. Seismic loads are determined based on analysis as described in Section 3.7. 

Basenent. The Reactor Building basement has the same outside dimensions as the first floor. The floor elevation corresponds to that of the sub-pile room. The general layout is shown in.Fig. 9.2.D. 

The bubble should now be exactly in the center at both ends in the front-to-rear direction and the left-to-right position(s). The bubble will be centered if the bed, bolster plate, and Level are all in good condition and the isolators are adjusted properly, even if the floor elevation is different under the isolators. 

Because of its small size, the reactor containment structure is located within a reactor service building. The general layout of systems and equipment within the reactor service building is as shown in Figures 1,2, and 3 with critical reactor auxiliary equipment placed near the reactor. Radwaste systems and equipment are situated at one end of the reactor service building away from the reactor. Large, heavy equipment is placed on the bottom floor elevation, while lighter equipment is located on the upper elevations. The system layouts are based on past experience with central station plants. 

The finished yard grade adjacent to the safety related structures will be maintained at least 1 foot below the ground floor elevation. 

Floor elevation The operating floor elevation is established by making ail standard allowances around and above equipment and providing the usual head-room below ail horizontal piping runs and conduits, as shown by blocks E and F and Exhibit 4-45. 

Wall-penetration streaming is minimised with penetration offsets between the radioactive source and the normally accessible areas. Penetrations are located as far as practicable above the floor elevation to reduce exposure to persoimel. 

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